/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Sage.
 *
 * The Initial Developer of the Original Code is
 * Peter Andrews <petea@jhu.edu>.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * Peter Andrews <petea@jhu.edu>
 * Erik Arvidsson <erik@eae.net>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");

const sageIFeedItem = Components.interfaces.sageIFeedItem;

/******************************************************************************
 * sageFeedItem Component
 ******************************************************************************/
function sageFeedItem() {};
sageFeedItem.prototype = {

  classDescription: "Sage Feed Item Component",
  classID: Components.ID("{BBAEEF86-C8B5-4B03-A250-2C433CB8EC5B}"),
  contractID: "@sage.mozdev.org/sage/feeditem;1",
    
  _title: null,
  _link: null,
  _author: null,
  _content: null,
  _pubDate: null,
  _enclosure: null,
  _baseURI: null,

  init: function(title, link, author, content, pubDate, enclosure, baseURI)
  {
    this._title = title;
    this._link = link;
    this._author = author;
    this._content = content;
    this._pubDate = pubDate;
    this._enclosure = enclosure;
    this._baseURI = baseURI;
  },
  
  hasTitle: function()
  {
    return Boolean(this._title);
  },
  
  getTitle: function()
  {
    var title;
    if (this.hasTitle()) {
      title = this._title;
    } else {
      if (this.hasContent()) {
        var temp = this.getContent();
        temp = temp.replace(/<.*?>/g, "");
        title = this._smartTrim(temp, 30, " ...");
      } else {
        title = null;
      }
    }
    return title;
  },
  
  hasAuthor: function()
  {
    return Boolean(this._author);
  },
  
  getAuthor: function()
  {
    return this.hasAuthor() ? this._author : null;
  },
  
  getLink: function()
  {
    return this._link;
  },
  
  hasContent: function()
  {
    return Boolean(this._content);
  },
  
  getContent: function()
  {
    return this.hasContent() ? this._content : null;
  },
  
  hasPubDate: function()
  {
    return Boolean(this._pubDate);
  },
  
  getPubDate: function()
  {
    return this.hasPubDate() ? this._pubDate : null;
  },
  
  hasEnclosure: function()
  {
    return Boolean(this._enclosure);
  },
  
  getEnclosure: function()
  {
    return this.hasEnclosure() ? this._enclosure : null;
  },
  
  hasBaseURI: function()
  {
    return Boolean(this._baseURI);
  },
  
  getBaseURI: function()
  {
    return this.hasBaseURI() ? this._baseURI : null;
  },
  
  _smartTrim: function(s, l, p) {
    var words = s.split(" ");
    var numWords = words.length;
    var output = [];
    var cwl, ol, cWord, w;
    ol = 0;
    for(w = 0; w < numWords; ++w) {
      cWord = words[w];
      cwl = cWord.length;
      if((ol + cwl) <= l) {
        output.push(cWord);
        ol += cwl + 1;
      } else {
        break;
      }
    }
    var trimmedString = output.join(" ");
    if (trimmedString == s) {
      return s;
    } else {
      return trimmedString + p;
    }
  },
  
  // nsISupports
  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.sageIFeedItem])

};

const NSGetFactory = XPCOMUtils.generateNSGetFactory([sageFeedItem]);
